(19)

(11)

EP 4 143 127 A1

(12)

(43) Date of publication: 08.03.2023 Bulletin 2023/10 (21) Application number: 21795745.5 (22) Date of filing: 05.04.2021

(51) International Patent Classification (IPC):  B67D 1/00(2006.01) (52) Cooperative Patent Classification (CPC): B67D 1/0888; B67D 1/0007; B67D 2210/00089; B67D 2210/00104; B67D 1/0884; B67D 1/0857; G06F 3/017; F25D 31/002; F25D 2700/04 (86) International application number: PCT/US2021/025791 (87) International publication number: WO 2021/221860 (04.11.2021 Gazette 2021/44)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 28.04.2020 US 202063016339 P 28.04.2020 US 202063016311 P 28.04.2020 US 202063016315 P (71) Applicant: Sestra Systems, Inc. Sterling, VA 20166 (US)	(72) Inventors: VOLFTSUN, Lev Sterling, VA 20166 (US) KUSHNIR, Alex Sterling, VA 20166 (US) MAPHIS, Ben Sterling, VA 20166 (US) (74) Representative: FRKelly  27 Clyde Road Dublin D04 F838 Dublin D04 F838 (IE)